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A method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall.
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| Number | Title | Issue Date |
| 5676601 | Carousel apparatus A carousel comprises turntable (10) mounted for rotation about a vertical axis on a frame (12, 13). The turntable (10) carries a plurality, and typically four, see-saw arrangements (11), each of which comprises an arm (43) pivoted centrally to a support (... | 10/14/1997 |
